UK 2008 £1 Silver Proof 25th Anniversary 14 Coin Set Collection by Royal mint n 2008, the modern £1 coin celebrated the 25th anniversary of the release of the £1. This special £1 silver proof collection marks this event. The collection comprises 14 silver proof coins, each one featuring a different design, which is coated in 24 carat gold, used on the £1 coin over the last quarter of a century. Low issue limit of just 3,000 sets for worldwide distribution Each coin struck to impeccable proof standard Beautifully displayed in a black leather display case and accompanied by an informative booklet and numbered Certificate of Authenticity. The original coins of 1983 featured the Royal Arms complete with supporters, a design which also appeared on the circulating £1 coins of 1993, 1998, 2003 and 2008 while the coin of 1988 bore a crowned shield of the Royal Arms. The three numismatic quartets featured in the following years: THE FLORAL SERIES featured in the years 1984 to 1987 and again in the years 1989 to 1992. THE HERALDIC SERIES featured in the years 1994 to 1997 and again in the years 1999 to 2002. THE BRIDGE SERIES featured in the years 2004 to 2007. Silver Proof £1 Coin Specifications Denomination - £1 Alloy - .925 sterling silver selectively plated with fine gold Weight - 9.50g (133gr) Diameter - 22.50mm